
var contextHTML="\
<ul>\
<li><a class=\"active\" href=\"/show/static/html/main.html\">主页</a></li>\
<li><a href=\"#contact\">联系</a></li>\
<li><a href=\"/show/static/html/about.html\">关于</a></li>\
<li><a href=\"/show/static/html/login.html\">登录</a></li>\
</ul>\
"
document.getElementById("nav").innerHTML=contextHTML;